Support mechanism



FIG. 1 is a perspective view of a support mechanism showing my design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a left-side elevational view thereof.

FIG. 5 is a right-side elevational view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof.

FIG. 8 is a closed and unused state view of the support mechanism; and,

FIG. 9 is a used state view of the support mechanism for reference.

The broken line showing of a display screen is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a support mechanism, as shown and described. 